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Exploring how a group of long-term mindfulness meditators describe the experience of listening to researcher-chosen music, and the sound of bells, during an unguided mindfulness meditation. Mindfulness Based Therapies (MBTs) have been used in a wide range of clinical settings in the last forty years, and have included interventions such as Mindfulness Based Stress Reduction (MBSR), Mindfulness Based Cognitive Therapy (MBCT), Acceptance and Commitment Therapy (ACT), Dialectical Behavioural Therapy (DBT), and many others. Up till now, little research has been done on using mindfulness-based interventions in music therapy, and much of this research has focused on more superficial aspects of mindfulness, rather than using its full potential as a clinical intervention. For a therapist to use mindfulness clinically requires them to have their own long-term meditation practice, and to complete facilitator training in an area such as MBSR, MBCT, ACT or DBT.